从request获取IP的方法

来源：http://blog.sina.com.cn/s/blog_7fa2bcf50100x8ql.html

根据request获取IP的方式:IPAddrUtil.java

public static String getIpAddr(HttpServletRequest request) {
<wbr><wbr><wbr><wbr><wbr><wbr><wbr>String ip = request.getHeader("x-forwarded-for");<br><wbr><wbr><wbr><wbr><wbr><wbr><wbr>if(ip == null || ip.length() == 0 || "unknown".equalsIgnoreCase(ip)) {<br><wbr><wbr><wbr><wbr><wbr><wbr><wbr><wbr><wbr><wbr><wbr>ip = request.getHeader("Proxy-Client-IP");<br><wbr><wbr><wbr><wbr><wbr><wbr><wbr>}<br><wbr><wbr><wbr><wbr><wbr><wbr><wbr>if(ip == null || ip.length() == 0 || "unknown".equalsIgnoreCase(ip)) {<br><wbr><wbr><wbr><wbr><wbr><wbr><wbr><wbr><wbr><wbr><wbr>ip = request.getHeader("WL-Proxy-Client-IP");<br><wbr><wbr><wbr><wbr><wbr><wbr><wbr>}<br><wbr><wbr><wbr><wbr><wbr><wbr><wbr>if(ip == null || ip.length() == 0 || "unknown".equalsIgnoreCase(ip)) {<br><wbr><wbr><wbr><wbr><wbr><wbr><wbr><wbr><wbr><wbr><wbr>ip = request.getRemoteAddr();<br><wbr><wbr><wbr><wbr><wbr><wbr><wbr>}<br><wbr><wbr><wbr><wbr><wbr><wbr><wbr>return ip;<br><wbr><wbr><wbr>}</wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr>

注意:当访问地址为localhost时 地址格式为 0:0:0:0:0:0:1

访问地址写为127.0.0.1时正常

//判断是否是内网，add by xun on 2013.03.27
String ip = IPAddrUtil.getIpAddr(request);
boolean isInnerIP = Pattern.matches("10[.]d{1,3}[.]d{1,3}[.]d{1,3}|127[.]0[.]0[.]1", ip); //10.0.0.0 -10.255.255.255或者127.0.0.1
map.put("isInnerIP", isInnerIP);